EP 1452621 A2 20040901 - Composite structured wear resistant coating
Title (en)
Composite structured wear resistant coating
Title (de)
Verschleissfeste Komposit-Oberflächenbeschichtung
Title (fr)
Revêtement à structure composite résistant à l'usure
Publication
Application
Priority
SE 0202632 A 20020904
Abstract (en)
The present invention relates to a cutting tool insert comprising a substrate and a coating. The coating is composed of one or more layers of refractory compounds of which at least one layer comprises a composite structured (TiyAlxMe1-x-y)N layer, where Me is one of the element Zr, Hf, V, Nb, Ta, Cr, Mo, W or Si, defined by: x is between 0.60 and 0.80 the ratio, R=x/(x+y), is between 0.60 and 0.85 the sum of Ti and Al subscript, S=x+y, is between 0.7 and 1.0 the co-existence of crystalline hexagonal h-AlN and cubic c-(TiyAlxMe1-x-y)N as detected by X-ray diffraction (XRD), defined by the ratio between the area of the h-AlN (100) peak at approximately 33 DEG 2θ (=A(h-AlN)100) and the c-(TiyAlxMe1-x-y)N (200) peak at about 43 DEG 2θ (=A(c-(Ti,Al,Me)N)200) called K, i.e. K=A(h-AlN)100/ A(c-(Ti,Al,Me)N)200, and K is >0.08 the FWHM (Full Width Half Maximum) value of the: c-(TibAlaMe1-a-b)N (200) peak < 1.4 DEG 2θ h-AlN (100) peak is between 0.2 and 1.5 DEG 2θ. <IMAGE>
IPC 1-7
IPC 8 full level
C23C 14/06 (2006.01); C23C 14/58 (2006.01); C23C 30/00 (2006.01)
CPC (source: EP US)
C23C 14/06 (2013.01 - EP US); C23C 14/0641 (2013.01 - EP US); C23C 14/0664 (2013.01 - EP US); C23C 14/5806 (2013.01 - EP US); C23C 30/005 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2004115484 A1 20040617; US 7083868 B2 20060801; EP 1452621 A2 20040901; EP 1452621 A3 20040908; SE 0202632 D0 20020904; SE 0202632 L 20040305; SE 526339 C2 20050823
DOCDB simple family (application)
US 65327503 A 20030903; EP 03019949 A 20030902; SE 0202632 A 20020904